1125523 has 4 divisors (see below), whose sum is σ = 1286320. Its totient is φ = 964728.

The previous prime is 1125499. The next prime is 1125529. The reversal of 1125523 is 3255211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1125523.

It is not an unprimeable number, because it can be changed into a prime (1125529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80388 + ... + 80401.

It is an arithmetic number, because the mean of its divisors is an integer number (321580).

2^1125523 is an apocalyptic number.

1125523 is a deficient number, since it is larger than the sum of its proper divisors (160797).

1125523 is an equidigital number, since it uses as much as digits as its factorization.

1125523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160796.

The product of its digits is 300, while the sum is 19.

The square root of 1125523 is about 1060.9066876969. The cubic root of 1125523 is about 104.0203054534.

The spelling of 1125523 in words is "one million, one hundred twenty-five thousand, five hundred twenty-three".